RFID-Based Secure Traffic Control Communication
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Solution Overview
Problem
There is a lack of secure communication methods between mobile devices and traffic controllers, which can lead to the transmission of false information, especially in automated systems like driverless cars, where the authenticity of traffic information cannot be verified.
Innovation Solution
A system that uses RFID devices to identify mobile devices in predetermined areas, sends private keys on different frequencies, and encrypts configuration and state information using public decryption keys to establish secure communication between mobile devices and intelligent traffic controllers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication between mobile device and traffic controller is established without verification, then information transfer can occur, but security and authenticity of the information cannot be guaranteed
Solution Approach 1:
The system performs preliminary actions by establishing a verified communication channel before any information transfer occurs. The traffic controller and mobile device authenticate each other and exchange encryption keys prior to transmitting traffic data, ensuring that only authorized devices can communicate and that the information received is authentic and has not been tampered with.
Solution Approach 2:
The patent introduces encryption algorithms and authentication protocols as intermediaries between the traffic controller and mobile device. These cryptographic mechanisms mediate the communication by verifying identities, encrypting data transmissions, and ensuring that only authenticated devices can exchange information, thereby guaranteeing the authenticity and integrity of traffic information without requiring direct unverified connections.
2Reliability
If encryption and verification protocols are implemented, then security and authenticity are improved, but communication complexity and processing requirements increase
Solution Approach 1:
The system manages complexity by dynamically adjusting cryptographic parameters such as key lengths, encryption algorithms, and verification protocols based on the specific communication context, device capabilities, and security requirements. This allows the system to implement strong security when needed while reducing processing overhead for routine communications, thereby balancing security requirements with device complexity and computational resources.
3Reliability
If private keys are transmitted frequently to ensure secure communication, then authentication reliability is improved, but the risk of key interception and communication vulnerability increases
Solution Approach 1:
The system implements periodic key exchange and rotation mechanisms where encryption keys are updated at predetermined intervals or after a certain number of communications. This periodic renewal of cryptographic credentials maintains strong authentication reliability while limiting the exposure window for any single key, thereby reducing the potential impact of key interception and enhancing overall security against eavesdropping and tampering attacks.
Data Source
AI summary
A processor may receive an indication form a radio frequency identification (RFID) device that a mobile device is in a predetermined area. The processor may send a private key on a first frequency at a first time to the mobile device. The processor may receive a communication request from the mobile device that may contain a public decryption key. The processor may send encrypted configuration information and encrypted state information to the mobile device. In some embodiments, an RFID device, may identify that a mobile device is within a predetermined area. The RFID device may send a tag to the mobile device. The RFID may send a notification to a communicator that the tag has been sent. The RFID may acquire the encrypted configuration information and encrypted state information form the communicator. The RFID device may push the encrypted configuration information and the encrypted state information to the mobile device.